for Atom and RSS and KML
It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.
<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "988407.mit-edu.top",cType: 'managed',cRay: '90f3aa88fc113b3c',cH: 'igXRHvF.7WM8CeYMcS.Q_LlwJZiZ4QyWybduIRuJ580-1739102081-1.2.1.1-Emfd1fRZVqL5GTUdPGwk17Qr8qDfZUm24_FFXzzf03tQ.p1PgVLl15oomKvCuPyv',cUPMDTk: "\/post\/7485236910?__cf_chl_tk=Qxa5T76eZ_LaETwdbFlrVtP3LvtGGgjE89FrXJmjdf4-1739102081-1.0.1.1-PDZJkM67AKjmtrTZlJnhgI9dUlhItU13viEmDnzskyQ",cFPWv: 'g',cITimeS: '1739102081',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7485236910?__cf_chl_f_tk=Qxa5T76eZ_LaETwdbFlrVtP3LvtGGgjE89FrXJmjdf4-1739102081-1.0.1.1-PDZJkM67AKjmtrTZlJnhgI9dUlhItU13viEmDnzskyQ",md: "zP01M6JQ3w5wDOdLKXVAL4DgIaWpPJIjIPY5jD95Hso-1739102081-1.2.1.1-LBaWP6n_xV1ZGArh9iuclgr4FjjsHRb56bahv1lihliFNVOhvC92t92gn7uAK4Y9PWdrlpHCyp3wDxNivt9VVk8i4QG7bf26_Chwd32RbfHGlMYLOGxwagGCjCFGkMiM2nEiustB2M6s1EsRVBCDwCMf12dKe3JZr81A.iyCAO8HcrxOioBgOsSXdw297hju3vp34PELcmdVUZ_YJNAws2Agh1L_A7BGJZJMDM0Gx4eGzO80KVoXpI5TmAGVi2ox06KJWuSq3oyz5rcqqsye9GsrhaqiJ4euaoxtJ2LN8trJs9MSazippUwZ_upU3RxZgsDSFy5CFHwzYGY9mpDJbCeBsUBAl0FAXA9zYnEepuS.1qQRvN2eZYmRbSSikXnn1wxJFyLF1rHp66qKkiiCoyE0g6No1SHF_8dAsdsQvU00K5F3zvJ16xAnZhyybkO5xLj5NGx1Zk.FChgrkwBcIY4BtAIpnsBxKQqzlSqyXd7tct1Ke6BrXrJ5ixzupzZFFlGcnOxdXMjAO8YSkpYx8ma5IOCmVDEiPG8dCNiT4z3eUn5DnAN7DM2byAwtgeYXl6DZpGFTjzl.9Udx4dzsRMw3wE5xJTxh9uwYeUQO0l0lZg9R00jWd_35NCurQ_ZsE_MPuPn_pB8rEa0ogOOUSAjxcJ5QoSbytT6isA5Xlz.UpeNLSKU2GrJ.5zoEeStSUWWjuph5GmqXlu8x.kfz011gWLZ5ZEWsTX4N6xhHXkXa_iZfoDbUQmOf7EenD1h87U_8mNmp377kvBGYNsN1eY8CHnVgmJBMBMk5FAtd0sShoqlXGQL3scyvfnjHqb2HrYgugGEMiyg0KNRQGnumb7E8nLvJdElPw15tOCTPLxPd2cGVyQRXRYf20O8vLFAYDXleKWwDoPAODEPVz0Mn.OWS8xXtvLZesBjNlMYxkgrcIjl1S0kYUb2jpGGW4d_e.m5Tuh4DZDl7S01nNYNhX2Ywa_ujLiLEfAbwJdzWRsaiRLCB4ZpQ2wFUmHC0tpKKwpTKZxbLf7Ukhm7am2G16BPOoDqSBeFdmx7LVaZaKWhYbqNqszwMakRWXsmwo2S4tfJ28QO0Q.hm2adqDwuk138hzTDWDPZJkKTu0ziLvpHH0MXGhf0xqrK0XhmE336r4RxsgmE6sK.NsVA3e7yQT5V0p.LAcPUDasHy6UNGjM4pQN62AqL.SsT9rZfZCREoS09X.DBjuZO7FHa2hjZAZLS3ZocTXmtlQUHWYa4dhzmd.6LYxPKoQXdg4qaSVNm9FKEAHH1kz6uOQdDlonQ.esFhd7V2YqFDFu4O5VlZkQJnpSQ1ab3LMReG5DxosQ6zMmYruricx1qcwWHNb8eX7h2w42hvM0VNy.Hy9vgDi18kjfr1tn37C5Vff3vi0o6pR0eqfK4Ah0W6cjVYh2_cmCwyTCszOdyBqsqcNZAQKQNcO7j_WhDfWyokanLRo98ImdUJ4FHxrBLCOH5GO.Lm_RN1ApHRD7MqL7B9vNHgSWwtfxWYDfmrPFxERURnrnrXSMELwJX9fI.OOogzYLaG2Tqy57L2Uq7xbN6ImEjw.bOcFolfS1FcNw8ARkXUrXO3AQarGCOw6EWjhzRh17xFhHM6aksSzokqQdc5Hjb9nInNRNnmy1RmDCMO9Noss9_ogQuZlEq1m1WcW6ZD6md95j9gy1t4VkmSGKOUh8Zb.4w4s4rHkbMTcJ6Srwuub6GVQHdw6dz14Wl7WTbU59285TaWK783c91iILyNjk4JMRTYtEPw70nT53oxUpSFwHtuZG5_AuFp4rFw_PCK7aRKT8dXRaBH6A9ko8teyuTNlssTXp4dmD6g5Dpv_eEHuuhkmERELO7duPXPDAV.R.a3lTPCNUB0eCbJGK4TFq5o9l_1z3C2wAf.L.cBfqPgkIjuq_iPCjGeR7NxcNGu8EQZ5LHZAr7f5DMh2Gec0iuGzq.sGtTwIjonCsObg2yQVUsyuC9efpf_HPFj3S3CvVQNaMY8Gr9fGL_1cvrlUYMobJmZQJMS.N4sAYyedpXo9i1_37UGhVBtJOvtG3M5rQ9uQKbb6CB_X78J61eyEqXmX8WX_xQTbIb_xR.EFuQglyj__bvhExVsC723T_AW3GrQBEi2kT7Kz.GPf7hTD7GlUN.dY1M5QQ95QilBBapn1JthLCT9q1wKcYDkhT7keKw.TGYRE3ZZ5HM9QRaRXVQLswA",mdrd: "mKWiLfX8W9cTHlalSroLUvF0wvarH9hRBvAksTId9WM-1739102081-1.2.1.1-RsYhziIzvZwLxkqmg_5Tq3OiytagMyBJWLQJadNYdtaNBnIAwclOp8LoFQT50bIvwlOWGQwyF.2ItDoakdjgEqDQiS77k3zE9Ly9sLUDLNut.JhEX5DziTWQlwvvJmABiqKfuZF_fVLp9H60smBrnmxX6a341zwPqWXhMFTqPeNBxehrcgm9B5g04aTFjJPfcS0BwbLHU6bhfhZFOXSRSAFbHWUVQ2IAHCwaBjdsjj7Ae5v1bx5UC5S0_V6C4r7ZDuOop0u4nPBkCMfETmJetOV19kl96kdFoQsTeBK16zFBABTv2eMratEtblm6sWlTla3LSwUDP7TANtgZzQME1oQZBSZdAb5XCEmluCTEGu8CxTfCLL22a4uPqesttKt5kmKirKGEa1L8HUeiOdkZT9CtNTGihi4G5NbjRrsTtrBnaWZnK2wsB1dvDGIvpZO9mx8Zh3Rr32g7yss2zFTuy1yqg8YGZQWWwz7sDbYOC5fPpKbxyrMzCXfw1fNEqWiWiQ7K_pq4RXVvN_ia7n0VC.rwtb5RoRCOWmc8ldrq6Wb9YPnCcYC9noyHvHpZBscS4afNkvqW3_hHgSlQCjtKf.6jWCnoIktiLSlWJ2MESbZMyOdJ4r4.PelXaHM9iZKcsNQH51y6hePUP8wi6qZhwnuhEXlBxFFui8ADu3Izq0LwQ06HQntsn.K2EW46VmjW5mRmhSifchWZvJb4le_SKuhulyZY41LSvnMRCkmA2FT_ajDLrPkf7v5xo3GbJBAeStCR5YRyC1rfD59eXzB70LkwyKfWf6VuRaKjGQ6RDGY79uISljyWFjoOy5EfTiARDrMHlLVKytLFKNw7EIo_EyK0rA6mWpOWw6v8kiGE1LX6upOBB8uK.DKGXxr4Wev7Qt1wx4bNqGmjAiUnr.xdbtcbZNHCCM1sCcL92iMU3gxbzIBP8qnKgvClhi_u1B7bMZIIHu2zFxrrVRSJZDBRyO0VW4irIjG7Y60TFoHpV7g0Fd8T4xSpJfM8mfHYq9YLvKbuL6VwNkiLWKucECRnpe6HBdPQrgmzFwzwHt8zUaF.0xTqkDIAKNJILZFJDRoSu366wz_KE_yKFVMPZvsU3ge9xocQJBaN4R_UmoxoTC7YO9KQZ8HNyxVFm4FNhroCJMeHu5Pxt3YCeyqynHpFJKCpukRUKGMAT5DsGjVKQUoilHqthGYHLRKgIRWXaPU6caiSq9yIc9os60Bz84lxUrzkqc6joRhLr.UGKkMRHUcSmXDIdNms886VCXCyJnRSKicJoXExDmLu6eesw3WNrcORKczlPWKTLerTojIJ1N4_z1grMs.Koh9SHVzlKcQ.h7HCuF9GMHoVjFsSPrquwPj5UvtggWInJAJUXUiiIwweLJ6FZKTpq6RmMvM9aYhL5vEYYEPhBqeASDOh1KrXZozj5FSTte.w81a.9ZM2qKlxqtE7.d4OKiqrrC1wOs1Ed.RWExXvQcpXbP8RJ2o820NYl0ONXvK9rlOtGqebQUeKSpfPCscvxG2.VtDfX.oYYS8uKksVyIKkcc1jX7iZuQrIacUMDcnG53dpUA4n4u6bkRX5eupZSmmuFAj0CWqVcg0qmOm6L9Uq6PjmEV6cqaUezcrUQceGqxE.po82tIMHuhrA6wzg94mokk3.uAswkx2gaBxNQFEZBIyMP3kjYgxLDIh0uNQdndoiOWcy54lkrhx2WgruhN9qZNKbLM.kXgQYTY2jmzl_TxEXU6LvzhciwwIzSoEjdGC33Ld1m.emFvEneufT29YS7YH.ZZ8gLV7wTp46jtunEwJs471zyQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3aa88fc113b3c';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/post\/7485236910?__cf_chl_rt_tk=Qxa5T76eZ_LaETwdbFlrVtP3LvtGGgjE89FrXJmjdf4-1739102081-1.0.1.1-PDZJkM67AKjmtrTZlJnhgI9dUlhItU13viEmDnzskyQ" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Home · About · News · Docs · Terms